Evidence row 1054128

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Get one published MCP server by its slug.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "slug": {
            "description": "The listing slug.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          }
        },
        "required": [
          "slug"
        ],
        "type": "object"
      },
      "name": "get_listing"
    },
    {
      "description": "Get the number of published MCP servers, places and categories, and when the data last changed.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_stats"
    },
    {
      "description": "List categories with their MCP server counts.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_categories"
    },
    {
      "description": "List countries, regions and cities that have MCP servers.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_places"
    },
    {
      "description": "List where the MCP server data comes from, with the license and refresh of each source.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_sources"
    },
    {
      "description": "Search published MCP servers by text, place and category.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "Category slug, from /categories. A parent slug also matches its children.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          },
          "city": {
            "description": "City slug, from /places.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          },
          "country": {
            "description": "ISO 3166-1 alpha-2 country code, any case. A country the directory does not cover, as listed in /places, gives 400.",
            "pattern": "^[A-Za-z]{2}$",
            "type": "string"
          },
          "cursor": {
            "description": "`page.nextCursor` from the previous response. Opaque. Send the same filters and `limit`.",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          },
          "limit": {
            "default": 20,
            "description": "Items per page.",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "q": {
            "description": "Search text, with at least one letter or digit. Matches name, categories, attributes, description and place. Typos fall back to close matches.",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          },
          "region": {
            "description": "Region slug, from /places.",
            "maxLength": 100,
            "minLength": 1,
            "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
            "type": "string"
          },
          "sort": {
            "description": "`relevance` needs `q` and is the default with it. `name` is the default without `q`. `recent` is newest first.",
            "enum": [
              "relevance",
              "name",
              "recent"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_listings"
    }
  ]
}

What the leaf hashes

{"body":"b07cf1bc6fe89928f7a25f6972d29efe541f46e8a045537dec2242e6e81c6cf8","id":1054128,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793312810519689,"prev":null,"subject":"9a9cd451-4277-48c0-9446-9daabb3a83f5","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0x9736b30efaac64ad2dfd1523bd39086f655f5a6aaebe0b52f1bed8e7928806bb
2. 0xb82cfd3306cc2e41a58e040bf7c05ced1377e70d1ce51dbba1e891f240ed25a0
3. 0xd262c1cb79204da3c8cd7ae6864b56d7f52b4bdbe78f08851903a24b5b8dfe37
4. 0xc53fc157f3dc5fb449aee85d94cf47711c112f3d663c2bb56e38cd81f2f34ce6
5. 0x464b6448d7fc440723814454adafec6d2d7b3c2a1ab0e66a4449903476919672
6. 0xddaf988aa04a8c9f24312392c34c78f0b3f1a89c5abbdf28b0f33e88467a018e
7. 0x77a90dc6b45c8e97874bb6ae80e82ab69d354dc7d799f211e825f94045956094
8. 0x60f86903a139832be6168eac1591063af2bd29864c54701646199bba2136a210
9. 0x0e63e95a908652b36136836e76e523ac1a26f3da7812f6d577eac33b76ff8df8
10. 0xad8e28cd213e4bf288b347be0c18357d9899f4ae98d7ae7793830f037223630b
11. 0x7d7ecfb1db0a6a7bcc9443ff1a4adf62c2ddb2e091fb57ec8d2447fdf331c12e
12. 0x5d5a3a20a5e3a2d8954f344d71e31e521736c7ff26c66e23a8131ffe1664e652
13. 0x27d0671676af363c48faa6ba6f13ccf8220db4153f3228b82faf62df6a2569a6
14. 0x2b11062f499f97c836e687fbba91202ea7ff254c8f8928d683df655cd117d9ec
15. 0x09d5ec1c01b0f087fe9f6cc95432188552da9adc88004aed57401ea49f2b56d4
16. 0xe38dc587bc010668982bd78025ac33d7326ffc2587f2de00e848da2718907ecf
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1